/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 13:32:34,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 13:32:34,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 13:32:34,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 13:32:34,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 13:32:34,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 13:32:34,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 13:32:34,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 13:32:34,549 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 13:32:34,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 13:32:34,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 13:32:34,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 13:32:34,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 13:32:34,551 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 13:32:34,551 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 13:32:34,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 13:32:34,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 13:32:34,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 13:32:34,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 13:32:34,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 13:32:34,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 13:32:34,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 13:32:34,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 13:32:34,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 13:32:34,817 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 13:32:34,821 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 13:32:34,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-06-05 13:32:34,822 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-06-05 13:32:34,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 13:32:34,890 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 13:32:34,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 13:32:34,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 13:32:34,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 13:32:34,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 13:32:34,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 13:32:34,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 13:32:34,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 13:32:34,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... [2021-06-05 13:32:34,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 13:32:34,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 13:32:34,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 13:32:34,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 13:32:34,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 13:32:34,973 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-05 13:32:34,973 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-05 13:32:34,973 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-05 13:32:34,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-05 13:32:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-05 13:32:34,974 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-05 13:32:34,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-05 13:32:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-05 13:32:34,974 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-05 13:32:34,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-05 13:32:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-05 13:32:34,974 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-05 13:32:34,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-05 13:32:34,974 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-05 13:32:34,975 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-05 13:32:34,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 13:32:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 13:32:34,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 13:32:34,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-05 13:32:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-05 13:32:34,975 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-05 13:32:34,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-05 13:32:34,975 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-05 13:32:34,975 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-05 13:32:34,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-05 13:32:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-05 13:32:34,976 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-05 13:32:34,976 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-06-05 13:32:34,976 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-06-05 13:32:34,976 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-06-05 13:32:34,976 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 13:32:35,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 13:32:35,117 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 13:32:35,118 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:32:35 BoogieIcfgContainer [2021-06-05 13:32:35,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 13:32:35,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 13:32:35,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 13:32:35,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 13:32:35,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 01:32:34" (1/2) ... [2021-06-05 13:32:35,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26242ea1 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 01:32:35, skipping insertion in model container [2021-06-05 13:32:35,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 01:32:35" (2/2) ... [2021-06-05 13:32:35,123 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-06-05 13:32:35,126 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 13:32:35,126 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 13:32:35,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 13:32:35,127 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 13:32:35,304 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-06-05 13:32:35,319 INFO L255 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-06-05 13:32:35,332 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 13:32:35,332 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 13:32:35,332 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 13:32:35,332 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 13:32:35,332 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 13:32:35,332 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 13:32:35,332 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 13:32:35,332 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 13:32:35,340 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 120 transitions, 528 flow [2021-06-05 13:35:41,209 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:41,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:35:43,384 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:35:43,385 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:35:43,386 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:35:43,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:35:43,390 INFO L82 PathProgramCache]: Analyzing trace with hash -579927567, now seen corresponding path program 1 times [2021-06-05 13:35:43,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:35:43,395 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617354677] [2021-06-05 13:35:43,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:35:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:35:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:35:43,535 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:35:43,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617354677] [2021-06-05 13:35:43,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617354677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:35:43,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:35:43,537 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:35:43,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632995885] [2021-06-05 13:35:43,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:35:43,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:35:43,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:35:43,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:35:44,168 INFO L87 Difference]: Start difference. First operand has 271988 states, 271986 states have (on average 6.722860735479032) internal successors, (1828524), 271987 states have internal predecessors, (1828524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:35:47,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:35:47,234 INFO L93 Difference]: Finished difference Result 247931 states and 1629507 transitions. [2021-06-05 13:35:47,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:35:47,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:35:47,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:35:50,363 INFO L225 Difference]: With dead ends: 247931 [2021-06-05 13:35:50,363 INFO L226 Difference]: Without dead ends: 247929 [2021-06-05 13:35:50,364 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:36:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247929 states. [2021-06-05 13:36:13,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247929 to 247929. [2021-06-05 13:36:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247929 states, 247928 states have (on average 6.572492820496273) internal successors, (1629505), 247928 states have internal predecessors, (1629505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:16,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247929 states to 247929 states and 1629505 transitions. [2021-06-05 13:36:16,684 INFO L78 Accepts]: Start accepts. Automaton has 247929 states and 1629505 transitions. Word has length 37 [2021-06-05 13:36:16,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:16,685 INFO L482 AbstractCegarLoop]: Abstraction has 247929 states and 1629505 transitions. [2021-06-05 13:36:16,685 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:16,685 INFO L276 IsEmpty]: Start isEmpty. Operand 247929 states and 1629505 transitions. [2021-06-05 13:36:17,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:36:17,959 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:17,959 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:17,960 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 13:36:17,960 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:17,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:17,961 INFO L82 PathProgramCache]: Analyzing trace with hash 65929237, now seen corresponding path program 1 times [2021-06-05 13:36:17,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:17,961 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997325905] [2021-06-05 13:36:17,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:17,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:17,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:17,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:17,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997325905] [2021-06-05 13:36:17,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997325905] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:17,983 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:17,983 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:36:17,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886097342] [2021-06-05 13:36:17,984 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:36:17,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:17,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:36:17,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:36:17,985 INFO L87 Difference]: Start difference. First operand 247929 states and 1629505 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:20,498 INFO L93 Difference]: Finished difference Result 205647 states and 1312390 transitions. [2021-06-05 13:36:20,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:36:20,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:36:20,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:22,231 INFO L225 Difference]: With dead ends: 205647 [2021-06-05 13:36:22,231 INFO L226 Difference]: Without dead ends: 205647 [2021-06-05 13:36:22,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:36:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205647 states. [2021-06-05 13:36:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205647 to 205647. [2021-06-05 13:36:40,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205647 states, 205646 states have (on average 6.381792011514934) internal successors, (1312390), 205646 states have internal predecessors, (1312390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205647 states to 205647 states and 1312390 transitions. [2021-06-05 13:36:42,833 INFO L78 Accepts]: Start accepts. Automaton has 205647 states and 1312390 transitions. Word has length 37 [2021-06-05 13:36:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:36:42,834 INFO L482 AbstractCegarLoop]: Abstraction has 205647 states and 1312390 transitions. [2021-06-05 13:36:42,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:42,834 INFO L276 IsEmpty]: Start isEmpty. Operand 205647 states and 1312390 transitions. [2021-06-05 13:36:44,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:36:44,332 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:36:44,332 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:36:44,333 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 13:36:44,333 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:36:44,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:36:44,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1044527641, now seen corresponding path program 1 times [2021-06-05 13:36:44,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:36:44,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373645280] [2021-06-05 13:36:44,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:36:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:36:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:36:44,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:36:44,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373645280] [2021-06-05 13:36:44,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373645280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:36:44,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:36:44,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:36:44,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661017128] [2021-06-05 13:36:44,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:36:44,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:36:44,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:36:44,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:36:44,395 INFO L87 Difference]: Start difference. First operand 205647 states and 1312390 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:36:47,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:36:47,200 INFO L93 Difference]: Finished difference Result 199086 states and 1257715 transitions. [2021-06-05 13:36:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:36:47,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:36:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:36:49,047 INFO L225 Difference]: With dead ends: 199086 [2021-06-05 13:36:49,048 INFO L226 Difference]: Without dead ends: 199086 [2021-06-05 13:36:49,048 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:02,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199086 states. [2021-06-05 13:37:07,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199086 to 199086. [2021-06-05 13:37:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199086 states, 199085 states have (on average 6.317477459376648) internal successors, (1257715), 199085 states have internal predecessors, (1257715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:10,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199086 states to 199086 states and 1257715 transitions. [2021-06-05 13:37:10,008 INFO L78 Accepts]: Start accepts. Automaton has 199086 states and 1257715 transitions. Word has length 37 [2021-06-05 13:37:10,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:10,009 INFO L482 AbstractCegarLoop]: Abstraction has 199086 states and 1257715 transitions. [2021-06-05 13:37:10,009 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 199086 states and 1257715 transitions. [2021-06-05 13:37:10,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:37:10,982 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:10,982 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:10,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 13:37:10,982 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:10,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:10,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1663480717, now seen corresponding path program 1 times [2021-06-05 13:37:10,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:10,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350737296] [2021-06-05 13:37:10,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:11,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:11,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350737296] [2021-06-05 13:37:11,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350737296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:11,050 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:11,050 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:37:11,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740306877] [2021-06-05 13:37:11,051 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:37:11,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:11,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:37:11,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:11,051 INFO L87 Difference]: Start difference. First operand 199086 states and 1257715 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:13,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:13,115 INFO L93 Difference]: Finished difference Result 144816 states and 896941 transitions. [2021-06-05 13:37:13,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:37:13,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:37:13,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:14,335 INFO L225 Difference]: With dead ends: 144816 [2021-06-05 13:37:14,335 INFO L226 Difference]: Without dead ends: 144816 [2021-06-05 13:37:14,335 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:24,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144816 states. [2021-06-05 13:37:27,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144816 to 144816. [2021-06-05 13:37:27,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144816 states, 144815 states have (on average 6.1937023098435935) internal successors, (896941), 144815 states have internal predecessors, (896941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144816 states to 144816 states and 896941 transitions. [2021-06-05 13:37:29,163 INFO L78 Accepts]: Start accepts. Automaton has 144816 states and 896941 transitions. Word has length 37 [2021-06-05 13:37:29,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:29,164 INFO L482 AbstractCegarLoop]: Abstraction has 144816 states and 896941 transitions. [2021-06-05 13:37:29,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:29,164 INFO L276 IsEmpty]: Start isEmpty. Operand 144816 states and 896941 transitions. [2021-06-05 13:37:30,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:37:30,164 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:30,165 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:30,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 13:37:30,165 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:30,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:30,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1563653977, now seen corresponding path program 1 times [2021-06-05 13:37:30,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:30,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636388543] [2021-06-05 13:37:30,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:30,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:30,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636388543] [2021-06-05 13:37:30,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636388543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:30,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:30,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:37:30,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839244075] [2021-06-05 13:37:30,208 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:37:30,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:30,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:37:30,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:30,208 INFO L87 Difference]: Start difference. First operand 144816 states and 896941 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:31,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:31,007 INFO L93 Difference]: Finished difference Result 107880 states and 652645 transitions. [2021-06-05 13:37:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:37:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:37:31,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:32,231 INFO L225 Difference]: With dead ends: 107880 [2021-06-05 13:37:32,231 INFO L226 Difference]: Without dead ends: 107880 [2021-06-05 13:37:32,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107880 states. [2021-06-05 13:37:42,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107880 to 107880. [2021-06-05 13:37:42,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107880 states, 107879 states have (on average 6.049787261654261) internal successors, (652645), 107879 states have internal predecessors, (652645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:43,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107880 states to 107880 states and 652645 transitions. [2021-06-05 13:37:43,897 INFO L78 Accepts]: Start accepts. Automaton has 107880 states and 652645 transitions. Word has length 37 [2021-06-05 13:37:43,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:43,897 INFO L482 AbstractCegarLoop]: Abstraction has 107880 states and 652645 transitions. [2021-06-05 13:37:43,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 107880 states and 652645 transitions. [2021-06-05 13:37:44,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:37:44,196 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:44,196 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:44,196 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 13:37:44,196 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:44,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:44,196 INFO L82 PathProgramCache]: Analyzing trace with hash 673733085, now seen corresponding path program 1 times [2021-06-05 13:37:44,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:44,197 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096484270] [2021-06-05 13:37:44,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:44,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:44,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096484270] [2021-06-05 13:37:44,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096484270] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:44,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:44,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:37:44,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870717429] [2021-06-05 13:37:44,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:37:44,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:44,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:37:44,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:44,218 INFO L87 Difference]: Start difference. First operand 107880 states and 652645 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:45,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:45,259 INFO L93 Difference]: Finished difference Result 76074 states and 457273 transitions. [2021-06-05 13:37:45,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:37:45,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:37:45,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:45,580 INFO L225 Difference]: With dead ends: 76074 [2021-06-05 13:37:45,581 INFO L226 Difference]: Without dead ends: 76074 [2021-06-05 13:37:45,581 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:52,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76074 states. [2021-06-05 13:37:53,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76074 to 76074. [2021-06-05 13:37:54,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76074 states, 76073 states have (on average 6.010976299081146) internal successors, (457273), 76073 states have internal predecessors, (457273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:54,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76074 states to 76074 states and 457273 transitions. [2021-06-05 13:37:54,338 INFO L78 Accepts]: Start accepts. Automaton has 76074 states and 457273 transitions. Word has length 37 [2021-06-05 13:37:54,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:37:54,338 INFO L482 AbstractCegarLoop]: Abstraction has 76074 states and 457273 transitions. [2021-06-05 13:37:54,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:54,338 INFO L276 IsEmpty]: Start isEmpty. Operand 76074 states and 457273 transitions. [2021-06-05 13:37:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:37:54,532 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:37:54,532 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:37:54,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 13:37:54,532 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:37:54,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:37:54,533 INFO L82 PathProgramCache]: Analyzing trace with hash -295306595, now seen corresponding path program 1 times [2021-06-05 13:37:54,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:37:54,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043356284] [2021-06-05 13:37:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:37:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:37:54,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:37:54,555 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:37:54,555 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043356284] [2021-06-05 13:37:54,555 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043356284] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:37:54,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:37:54,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 13:37:54,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468045076] [2021-06-05 13:37:54,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 13:37:54,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:37:54,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 13:37:54,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:37:54,556 INFO L87 Difference]: Start difference. First operand 76074 states and 457273 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:37:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:37:55,537 INFO L93 Difference]: Finished difference Result 54114 states and 324757 transitions. [2021-06-05 13:37:55,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 13:37:55,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:37:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:37:55,763 INFO L225 Difference]: With dead ends: 54114 [2021-06-05 13:37:55,763 INFO L226 Difference]: Without dead ends: 54114 [2021-06-05 13:37:55,764 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 13:38:01,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54114 states. [2021-06-05 13:38:02,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54114 to 54114. [2021-06-05 13:38:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54114 states, 54113 states have (on average 6.001459907970358) internal successors, (324757), 54113 states have internal predecessors, (324757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54114 states to 54114 states and 324757 transitions. [2021-06-05 13:38:03,072 INFO L78 Accepts]: Start accepts. Automaton has 54114 states and 324757 transitions. Word has length 37 [2021-06-05 13:38:03,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:03,073 INFO L482 AbstractCegarLoop]: Abstraction has 54114 states and 324757 transitions. [2021-06-05 13:38:03,073 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:03,073 INFO L276 IsEmpty]: Start isEmpty. Operand 54114 states and 324757 transitions. [2021-06-05 13:38:03,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:38:03,209 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:03,209 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:03,210 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 13:38:03,210 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:03,210 INFO L82 PathProgramCache]: Analyzing trace with hash 857199773, now seen corresponding path program 1 times [2021-06-05 13:38:03,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:03,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283187311] [2021-06-05 13:38:03,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:03,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:03,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283187311] [2021-06-05 13:38:03,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283187311] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:03,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:03,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:38:03,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759059467] [2021-06-05 13:38:03,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:38:03,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:03,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:38:03,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:03,594 INFO L87 Difference]: Start difference. First operand 54114 states and 324757 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:04,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:04,975 INFO L93 Difference]: Finished difference Result 141637 states and 796695 transitions. [2021-06-05 13:38:04,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:38:04,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:38:04,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:05,506 INFO L225 Difference]: With dead ends: 141637 [2021-06-05 13:38:05,506 INFO L226 Difference]: Without dead ends: 138843 [2021-06-05 13:38:05,507 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:38:12,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138843 states. [2021-06-05 13:38:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138843 to 55328. [2021-06-05 13:38:14,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55328 states, 55327 states have (on average 5.981690675438755) internal successors, (330949), 55327 states have internal predecessors, (330949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55328 states to 55328 states and 330949 transitions. [2021-06-05 13:38:14,862 INFO L78 Accepts]: Start accepts. Automaton has 55328 states and 330949 transitions. Word has length 37 [2021-06-05 13:38:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:14,863 INFO L482 AbstractCegarLoop]: Abstraction has 55328 states and 330949 transitions. [2021-06-05 13:38:14,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 55328 states and 330949 transitions. [2021-06-05 13:38:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:38:15,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:15,000 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:15,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 13:38:15,001 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:15,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:15,001 INFO L82 PathProgramCache]: Analyzing trace with hash -732734977, now seen corresponding path program 2 times [2021-06-05 13:38:15,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:15,001 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716757345] [2021-06-05 13:38:15,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:15,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:15,790 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:15,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716757345] [2021-06-05 13:38:15,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716757345] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:15,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:15,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:38:15,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416661655] [2021-06-05 13:38:15,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:38:15,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:15,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:38:15,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:15,792 INFO L87 Difference]: Start difference. First operand 55328 states and 330949 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:17,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:17,345 INFO L93 Difference]: Finished difference Result 141875 states and 797558 transitions. [2021-06-05 13:38:17,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:38:17,345 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:38:17,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:17,889 INFO L225 Difference]: With dead ends: 141875 [2021-06-05 13:38:17,890 INFO L226 Difference]: Without dead ends: 138332 [2021-06-05 13:38:17,890 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 359.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:38:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138332 states. [2021-06-05 13:38:27,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138332 to 54817. [2021-06-05 13:38:27,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54817 states, 54816 states have (on average 5.990787361354349) internal successors, (328391), 54816 states have internal predecessors, (328391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54817 states to 54817 states and 328391 transitions. [2021-06-05 13:38:27,440 INFO L78 Accepts]: Start accepts. Automaton has 54817 states and 328391 transitions. Word has length 37 [2021-06-05 13:38:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:27,440 INFO L482 AbstractCegarLoop]: Abstraction has 54817 states and 328391 transitions. [2021-06-05 13:38:27,440 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:27,440 INFO L276 IsEmpty]: Start isEmpty. Operand 54817 states and 328391 transitions. [2021-06-05 13:38:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:38:27,578 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:27,578 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:27,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 13:38:27,579 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:27,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:27,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1938262399, now seen corresponding path program 3 times [2021-06-05 13:38:27,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:27,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651423832] [2021-06-05 13:38:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:27,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:27,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:27,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651423832] [2021-06-05 13:38:27,818 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651423832] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:27,818 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:27,818 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:38:27,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393012330] [2021-06-05 13:38:27,818 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:38:27,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:27,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:38:27,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:27,819 INFO L87 Difference]: Start difference. First operand 54817 states and 328391 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:29,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:29,252 INFO L93 Difference]: Finished difference Result 141494 states and 795819 transitions. [2021-06-05 13:38:29,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:38:29,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:38:29,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:30,436 INFO L225 Difference]: With dead ends: 141494 [2021-06-05 13:38:30,437 INFO L226 Difference]: Without dead ends: 138700 [2021-06-05 13:38:30,452 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 221.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:38:37,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138700 states. [2021-06-05 13:38:39,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138700 to 55199. [2021-06-05 13:38:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55199 states, 55198 states have (on average 5.980579006485742) internal successors, (330116), 55198 states have internal predecessors, (330116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:39,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55199 states to 55199 states and 330116 transitions. [2021-06-05 13:38:39,660 INFO L78 Accepts]: Start accepts. Automaton has 55199 states and 330116 transitions. Word has length 37 [2021-06-05 13:38:39,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:39,660 INFO L482 AbstractCegarLoop]: Abstraction has 55199 states and 330116 transitions. [2021-06-05 13:38:39,660 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:39,660 INFO L276 IsEmpty]: Start isEmpty. Operand 55199 states and 330116 transitions. [2021-06-05 13:38:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:38:40,195 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:40,195 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:40,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 13:38:40,196 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:40,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:40,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1348406913, now seen corresponding path program 4 times [2021-06-05 13:38:40,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:40,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220054583] [2021-06-05 13:38:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:40,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:40,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220054583] [2021-06-05 13:38:40,560 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220054583] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:40,560 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:40,560 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:38:40,560 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913025157] [2021-06-05 13:38:40,560 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:38:40,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:40,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:38:40,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:40,561 INFO L87 Difference]: Start difference. First operand 55199 states and 330116 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:42,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:42,050 INFO L93 Difference]: Finished difference Result 141718 states and 796641 transitions. [2021-06-05 13:38:42,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:38:42,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:38:42,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:42,580 INFO L225 Difference]: With dead ends: 141718 [2021-06-05 13:38:42,581 INFO L226 Difference]: Without dead ends: 138318 [2021-06-05 13:38:42,581 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 285.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:38:49,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138318 states. [2021-06-05 13:38:51,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138318 to 54817. [2021-06-05 13:38:51,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54817 states, 54816 states have (on average 5.9873029772329245) internal successors, (328200), 54816 states have internal predecessors, (328200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:52,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54817 states to 54817 states and 328200 transitions. [2021-06-05 13:38:52,070 INFO L78 Accepts]: Start accepts. Automaton has 54817 states and 328200 transitions. Word has length 37 [2021-06-05 13:38:52,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:38:52,070 INFO L482 AbstractCegarLoop]: Abstraction has 54817 states and 328200 transitions. [2021-06-05 13:38:52,070 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 54817 states and 328200 transitions. [2021-06-05 13:38:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:38:52,205 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:38:52,205 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:38:52,206 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 13:38:52,206 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:38:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:38:52,206 INFO L82 PathProgramCache]: Analyzing trace with hash -939542943, now seen corresponding path program 5 times [2021-06-05 13:38:52,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:38:52,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481747031] [2021-06-05 13:38:52,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:38:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:38:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:38:52,422 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:38:52,422 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481747031] [2021-06-05 13:38:52,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481747031] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:38:52,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:38:52,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:38:52,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652364724] [2021-06-05 13:38:52,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:38:52,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:38:52,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:38:52,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:38:52,423 INFO L87 Difference]: Start difference. First operand 54817 states and 328200 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:38:53,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:38:53,794 INFO L93 Difference]: Finished difference Result 142083 states and 798781 transitions. [2021-06-05 13:38:53,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:38:53,794 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:38:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:38:54,784 INFO L225 Difference]: With dead ends: 142083 [2021-06-05 13:38:54,785 INFO L226 Difference]: Without dead ends: 139051 [2021-06-05 13:38:54,785 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 225.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:39:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139051 states. [2021-06-05 13:39:03,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139051 to 55312. [2021-06-05 13:39:03,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55312 states, 55311 states have (on average 5.974815136229683) internal successors, (330473), 55311 states have internal predecessors, (330473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55312 states to 55312 states and 330473 transitions. [2021-06-05 13:39:04,340 INFO L78 Accepts]: Start accepts. Automaton has 55312 states and 330473 transitions. Word has length 37 [2021-06-05 13:39:04,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:04,340 INFO L482 AbstractCegarLoop]: Abstraction has 55312 states and 330473 transitions. [2021-06-05 13:39:04,342 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 55312 states and 330473 transitions. [2021-06-05 13:39:04,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:39:04,528 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:04,528 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:04,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 13:39:04,528 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:04,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:04,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1312087359, now seen corresponding path program 6 times [2021-06-05 13:39:04,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:04,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878313016] [2021-06-05 13:39:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:04,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:04,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878313016] [2021-06-05 13:39:04,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878313016] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:04,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:04,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:39:04,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316687190] [2021-06-05 13:39:04,751 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:39:04,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:04,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:39:04,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:04,751 INFO L87 Difference]: Start difference. First operand 55312 states and 330473 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:06,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:06,135 INFO L93 Difference]: Finished difference Result 142069 states and 798244 transitions. [2021-06-05 13:39:06,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:39:06,136 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:39:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:06,705 INFO L225 Difference]: With dead ends: 142069 [2021-06-05 13:39:06,705 INFO L226 Difference]: Without dead ends: 138237 [2021-06-05 13:39:06,705 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 231.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:39:13,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138237 states. [2021-06-05 13:39:15,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138237 to 54498. [2021-06-05 13:39:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.995963080536543) internal successors, (326762), 54497 states have internal predecessors, (326762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326762 transitions. [2021-06-05 13:39:15,960 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326762 transitions. Word has length 37 [2021-06-05 13:39:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:15,961 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326762 transitions. [2021-06-05 13:39:15,961 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326762 transitions. [2021-06-05 13:39:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:39:16,097 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:16,097 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:16,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 13:39:16,097 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:16,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:16,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1683646941, now seen corresponding path program 7 times [2021-06-05 13:39:16,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:16,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474102669] [2021-06-05 13:39:16,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:16,316 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:16,316 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474102669] [2021-06-05 13:39:16,316 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474102669] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:16,316 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:16,316 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:39:16,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978732591] [2021-06-05 13:39:16,317 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:39:16,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:16,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:39:16,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:16,317 INFO L87 Difference]: Start difference. First operand 54498 states and 326762 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:17,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:17,718 INFO L93 Difference]: Finished difference Result 141534 states and 796137 transitions. [2021-06-05 13:39:17,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:39:17,718 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:39:17,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:18,861 INFO L225 Difference]: With dead ends: 141534 [2021-06-05 13:39:18,862 INFO L226 Difference]: Without dead ends: 138740 [2021-06-05 13:39:18,862 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:39:26,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138740 states. [2021-06-05 13:39:27,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138740 to 55263. [2021-06-05 13:39:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55263 states, 55262 states have (on average 5.981144366834353) internal successors, (330530), 55262 states have internal predecessors, (330530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:28,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55263 states to 55263 states and 330530 transitions. [2021-06-05 13:39:28,564 INFO L78 Accepts]: Start accepts. Automaton has 55263 states and 330530 transitions. Word has length 37 [2021-06-05 13:39:28,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:28,564 INFO L482 AbstractCegarLoop]: Abstraction has 55263 states and 330530 transitions. [2021-06-05 13:39:28,564 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:28,565 INFO L276 IsEmpty]: Start isEmpty. Operand 55263 states and 330530 transitions. [2021-06-05 13:39:28,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:39:28,719 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:28,719 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:28,719 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 13:39:28,719 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:28,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:28,720 INFO L82 PathProgramCache]: Analyzing trace with hash 93712191, now seen corresponding path program 8 times [2021-06-05 13:39:28,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:28,720 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252445976] [2021-06-05 13:39:28,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:28,928 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:28,928 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252445976] [2021-06-05 13:39:28,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252445976] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:28,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:28,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:39:28,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138388834] [2021-06-05 13:39:28,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:39:28,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:28,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:39:28,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:28,929 INFO L87 Difference]: Start difference. First operand 55263 states and 330530 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:30,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:30,391 INFO L93 Difference]: Finished difference Result 141772 states and 797000 transitions. [2021-06-05 13:39:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:39:30,391 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:39:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:30,926 INFO L225 Difference]: With dead ends: 141772 [2021-06-05 13:39:30,926 INFO L226 Difference]: Without dead ends: 138229 [2021-06-05 13:39:30,926 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 246.8ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:39:38,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138229 states. [2021-06-05 13:39:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138229 to 54752. [2021-06-05 13:39:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54752 states, 54751 states have (on average 5.990265017990539) internal successors, (327973), 54751 states have internal predecessors, (327973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:40,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54752 states to 54752 states and 327973 transitions. [2021-06-05 13:39:40,183 INFO L78 Accepts]: Start accepts. Automaton has 54752 states and 327973 transitions. Word has length 37 [2021-06-05 13:39:40,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:40,183 INFO L482 AbstractCegarLoop]: Abstraction has 54752 states and 327973 transitions. [2021-06-05 13:39:40,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:40,184 INFO L276 IsEmpty]: Start isEmpty. Operand 54752 states and 327973 transitions. [2021-06-05 13:39:40,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:39:40,320 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:40,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:40,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 13:39:40,320 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:40,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:40,320 INFO L82 PathProgramCache]: Analyzing trace with hash -4599331, now seen corresponding path program 9 times [2021-06-05 13:39:40,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:40,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982502577] [2021-06-05 13:39:40,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:40,550 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:40,550 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982502577] [2021-06-05 13:39:40,551 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982502577] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:40,551 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:40,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:39:40,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641304144] [2021-06-05 13:39:40,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:39:40,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:40,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:39:40,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:40,552 INFO L87 Difference]: Start difference. First operand 54752 states and 327973 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:41,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:41,970 INFO L93 Difference]: Finished difference Result 141365 states and 795171 transitions. [2021-06-05 13:39:41,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:39:41,970 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:39:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:43,591 INFO L225 Difference]: With dead ends: 141365 [2021-06-05 13:39:43,591 INFO L226 Difference]: Without dead ends: 138571 [2021-06-05 13:39:43,592 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 241.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:39:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138571 states. [2021-06-05 13:39:52,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138571 to 55132. [2021-06-05 13:39:52,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55132 states, 55131 states have (on average 5.980174493479168) internal successors, (329693), 55131 states have internal predecessors, (329693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:53,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55132 states to 55132 states and 329693 transitions. [2021-06-05 13:39:53,098 INFO L78 Accepts]: Start accepts. Automaton has 55132 states and 329693 transitions. Word has length 37 [2021-06-05 13:39:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:39:53,098 INFO L482 AbstractCegarLoop]: Abstraction has 55132 states and 329693 transitions. [2021-06-05 13:39:53,098 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:53,098 INFO L276 IsEmpty]: Start isEmpty. Operand 55132 states and 329693 transitions. [2021-06-05 13:39:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:39:53,651 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:39:53,651 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:39:53,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 13:39:53,652 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:39:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:39:53,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1675897309, now seen corresponding path program 10 times [2021-06-05 13:39:53,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:39:53,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518885064] [2021-06-05 13:39:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:39:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:39:53,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:39:53,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:39:53,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518885064] [2021-06-05 13:39:53,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518885064] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:39:53,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:39:53,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:39:53,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248013130] [2021-06-05 13:39:53,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:39:53,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:39:53,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:39:53,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:39:53,987 INFO L87 Difference]: Start difference. First operand 55132 states and 329693 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:39:55,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:39:55,463 INFO L93 Difference]: Finished difference Result 141565 states and 795911 transitions. [2021-06-05 13:39:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:39:55,463 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:39:55,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:39:56,000 INFO L225 Difference]: With dead ends: 141565 [2021-06-05 13:39:56,001 INFO L226 Difference]: Without dead ends: 138191 [2021-06-05 13:39:56,001 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 289.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:40:03,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138191 states. [2021-06-05 13:40:05,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138191 to 54752. [2021-06-05 13:40:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54752 states, 54751 states have (on average 5.986794761739511) internal successors, (327783), 54751 states have internal predecessors, (327783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:05,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54752 states to 54752 states and 327783 transitions. [2021-06-05 13:40:05,590 INFO L78 Accepts]: Start accepts. Automaton has 54752 states and 327783 transitions. Word has length 37 [2021-06-05 13:40:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:05,590 INFO L482 AbstractCegarLoop]: Abstraction has 54752 states and 327783 transitions. [2021-06-05 13:40:05,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 54752 states and 327783 transitions. [2021-06-05 13:40:05,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:40:05,739 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:05,739 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:05,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 13:40:05,739 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:05,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:05,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1412562623, now seen corresponding path program 11 times [2021-06-05 13:40:05,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:05,739 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274711576] [2021-06-05 13:40:05,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:05,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:05,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:05,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274711576] [2021-06-05 13:40:05,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274711576] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:05,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:05,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:40:05,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186010186] [2021-06-05 13:40:05,923 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:40:05,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:05,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:40:05,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:05,924 INFO L87 Difference]: Start difference. First operand 54752 states and 327783 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:07,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:07,435 INFO L93 Difference]: Finished difference Result 141944 states and 798093 transitions. [2021-06-05 13:40:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:40:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:40:07,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:07,988 INFO L225 Difference]: With dead ends: 141944 [2021-06-05 13:40:07,988 INFO L226 Difference]: Without dead ends: 138912 [2021-06-05 13:40:07,989 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 215.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:40:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138912 states. [2021-06-05 13:40:17,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138912 to 55235. [2021-06-05 13:40:17,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55235 states, 55234 states have (on average 5.974942969909838) internal successors, (330020), 55234 states have internal predecessors, (330020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:17,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55235 states to 55235 states and 330020 transitions. [2021-06-05 13:40:17,482 INFO L78 Accepts]: Start accepts. Automaton has 55235 states and 330020 transitions. Word has length 37 [2021-06-05 13:40:17,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:17,482 INFO L482 AbstractCegarLoop]: Abstraction has 55235 states and 330020 transitions. [2021-06-05 13:40:17,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:17,482 INFO L276 IsEmpty]: Start isEmpty. Operand 55235 states and 330020 transitions. [2021-06-05 13:40:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:40:18,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:18,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:18,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 13:40:18,096 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:18,096 INFO L82 PathProgramCache]: Analyzing trace with hash 20418077, now seen corresponding path program 12 times [2021-06-05 13:40:18,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:18,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027544907] [2021-06-05 13:40:18,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:18,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:18,414 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:18,414 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027544907] [2021-06-05 13:40:18,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027544907] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:18,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:18,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:40:18,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855517102] [2021-06-05 13:40:18,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:40:18,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:18,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:40:18,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:18,415 INFO L87 Difference]: Start difference. First operand 55235 states and 330020 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:19,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:19,907 INFO L93 Difference]: Finished difference Result 141906 states and 797484 transitions. [2021-06-05 13:40:19,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:40:19,907 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:40:19,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:20,455 INFO L225 Difference]: With dead ends: 141906 [2021-06-05 13:40:20,455 INFO L226 Difference]: Without dead ends: 138175 [2021-06-05 13:40:20,456 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 273.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:40:27,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138175 states. [2021-06-05 13:40:29,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138175 to 54498. [2021-06-05 13:40:29,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.993632677028093) internal successors, (326635), 54497 states have internal predecessors, (326635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326635 transitions. [2021-06-05 13:40:29,880 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326635 transitions. Word has length 37 [2021-06-05 13:40:29,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:29,880 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326635 transitions. [2021-06-05 13:40:29,880 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:29,881 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326635 transitions. [2021-06-05 13:40:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:40:30,017 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:30,017 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:30,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 13:40:30,017 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:30,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:30,017 INFO L82 PathProgramCache]: Analyzing trace with hash 2071651903, now seen corresponding path program 13 times [2021-06-05 13:40:30,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:30,018 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174779015] [2021-06-05 13:40:30,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:30,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:30,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:30,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174779015] [2021-06-05 13:40:30,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174779015] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:30,213 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:30,213 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:40:30,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500825814] [2021-06-05 13:40:30,213 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:40:30,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:30,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:40:30,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:30,214 INFO L87 Difference]: Start difference. First operand 54498 states and 326635 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:31,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:31,553 INFO L93 Difference]: Finished difference Result 141183 states and 794445 transitions. [2021-06-05 13:40:31,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:40:31,553 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:40:31,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:32,088 INFO L225 Difference]: With dead ends: 141183 [2021-06-05 13:40:32,088 INFO L226 Difference]: Without dead ends: 138389 [2021-06-05 13:40:32,089 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 185.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:40:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138389 states. [2021-06-05 13:40:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138389 to 55070. [2021-06-05 13:40:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55070 states, 55069 states have (on average 5.983493435508181) internal successors, (329505), 55069 states have internal predecessors, (329505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:41,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55070 states to 55070 states and 329505 transitions. [2021-06-05 13:40:41,429 INFO L78 Accepts]: Start accepts. Automaton has 55070 states and 329505 transitions. Word has length 37 [2021-06-05 13:40:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:41,429 INFO L482 AbstractCegarLoop]: Abstraction has 55070 states and 329505 transitions. [2021-06-05 13:40:41,429 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 55070 states and 329505 transitions. [2021-06-05 13:40:41,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:40:41,988 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:41,988 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:41,988 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 13:40:41,988 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:41,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:41,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1215017409, now seen corresponding path program 14 times [2021-06-05 13:40:41,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:41,989 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237997733] [2021-06-05 13:40:41,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:42,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:42,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:42,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237997733] [2021-06-05 13:40:42,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237997733] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:42,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:42,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:40:42,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456443809] [2021-06-05 13:40:42,282 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:40:42,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:42,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:40:42,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:42,283 INFO L87 Difference]: Start difference. First operand 55070 states and 329505 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:43,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:43,759 INFO L93 Difference]: Finished difference Result 141407 states and 795267 transitions. [2021-06-05 13:40:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:40:43,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:40:43,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:44,309 INFO L225 Difference]: With dead ends: 141407 [2021-06-05 13:40:44,309 INFO L226 Difference]: Without dead ends: 138007 [2021-06-05 13:40:44,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 271.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:40:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138007 states. [2021-06-05 13:40:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138007 to 54688. [2021-06-05 13:40:53,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54688 states, 54687 states have (on average 5.990271911057473) internal successors, (327590), 54687 states have internal predecessors, (327590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54688 states to 54688 states and 327590 transitions. [2021-06-05 13:40:53,931 INFO L78 Accepts]: Start accepts. Automaton has 54688 states and 327590 transitions. Word has length 37 [2021-06-05 13:40:53,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:40:53,931 INFO L482 AbstractCegarLoop]: Abstraction has 54688 states and 327590 transitions. [2021-06-05 13:40:53,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:53,931 INFO L276 IsEmpty]: Start isEmpty. Operand 54688 states and 327590 transitions. [2021-06-05 13:40:54,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:40:54,066 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:40:54,066 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:40:54,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 13:40:54,066 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:40:54,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:40:54,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1224854941, now seen corresponding path program 15 times [2021-06-05 13:40:54,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:40:54,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256083806] [2021-06-05 13:40:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:40:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:40:54,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:40:54,280 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:40:54,280 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256083806] [2021-06-05 13:40:54,280 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256083806] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:40:54,280 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:40:54,280 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:40:54,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984235819] [2021-06-05 13:40:54,280 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:40:54,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:40:54,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:40:54,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:40:54,282 INFO L87 Difference]: Start difference. First operand 54688 states and 327590 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:40:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:40:55,860 INFO L93 Difference]: Finished difference Result 141157 states and 794164 transitions. [2021-06-05 13:40:55,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:40:55,861 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:40:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:40:56,657 INFO L225 Difference]: With dead ends: 141157 [2021-06-05 13:40:56,657 INFO L226 Difference]: Without dead ends: 138363 [2021-06-05 13:40:56,657 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 209.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:41:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138363 states. [2021-06-05 13:41:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138363 to 55068. [2021-06-05 13:41:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55068 states, 55067 states have (on average 5.9801696115640945) internal successors, (329310), 55067 states have internal predecessors, (329310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:06,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55068 states to 55068 states and 329310 transitions. [2021-06-05 13:41:06,223 INFO L78 Accepts]: Start accepts. Automaton has 55068 states and 329310 transitions. Word has length 37 [2021-06-05 13:41:06,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:06,223 INFO L482 AbstractCegarLoop]: Abstraction has 55068 states and 329310 transitions. [2021-06-05 13:41:06,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:06,224 INFO L276 IsEmpty]: Start isEmpty. Operand 55068 states and 329310 transitions. [2021-06-05 13:41:06,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:41:06,361 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:06,361 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:06,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 13:41:06,361 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:06,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:06,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1194995263, now seen corresponding path program 16 times [2021-06-05 13:41:06,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:06,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544504268] [2021-06-05 13:41:06,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:06,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:06,581 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:06,581 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544504268] [2021-06-05 13:41:06,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544504268] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:06,582 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:06,582 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:41:06,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317111159] [2021-06-05 13:41:06,583 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:41:06,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:06,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:41:06,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:06,583 INFO L87 Difference]: Start difference. First operand 55068 states and 329310 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:07,997 INFO L93 Difference]: Finished difference Result 141357 states and 794904 transitions. [2021-06-05 13:41:07,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:41:07,997 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:41:07,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:09,004 INFO L225 Difference]: With dead ends: 141357 [2021-06-05 13:41:09,004 INFO L226 Difference]: Without dead ends: 137983 [2021-06-05 13:41:09,004 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 268.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:41:16,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137983 states. [2021-06-05 13:41:17,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137983 to 54688. [2021-06-05 13:41:17,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54688 states, 54687 states have (on average 5.9867975935779985) internal successors, (327400), 54687 states have internal predecessors, (327400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54688 states to 54688 states and 327400 transitions. [2021-06-05 13:41:18,484 INFO L78 Accepts]: Start accepts. Automaton has 54688 states and 327400 transitions. Word has length 37 [2021-06-05 13:41:18,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:18,484 INFO L482 AbstractCegarLoop]: Abstraction has 54688 states and 327400 transitions. [2021-06-05 13:41:18,484 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 54688 states and 327400 transitions. [2021-06-05 13:41:18,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:41:18,663 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:18,663 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:18,663 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 13:41:18,664 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:18,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:18,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1165449665, now seen corresponding path program 17 times [2021-06-05 13:41:18,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:18,664 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132697201] [2021-06-05 13:41:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:18,862 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:18,862 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132697201] [2021-06-05 13:41:18,862 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132697201] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:18,862 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:18,862 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:41:18,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259945888] [2021-06-05 13:41:18,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:41:18,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:18,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:41:18,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:18,863 INFO L87 Difference]: Start difference. First operand 54688 states and 327400 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:20,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:20,344 INFO L93 Difference]: Finished difference Result 141707 states and 796999 transitions. [2021-06-05 13:41:20,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:41:20,344 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:41:20,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:20,882 INFO L225 Difference]: With dead ends: 141707 [2021-06-05 13:41:20,883 INFO L226 Difference]: Without dead ends: 138689 [2021-06-05 13:41:20,883 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 220.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:41:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138689 states. [2021-06-05 13:41:29,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138689 to 55170. [2021-06-05 13:41:29,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55170 states, 55169 states have (on average 5.975004078377349) internal successors, (329635), 55169 states have internal predecessors, (329635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55170 states to 55170 states and 329635 transitions. [2021-06-05 13:41:30,105 INFO L78 Accepts]: Start accepts. Automaton has 55170 states and 329635 transitions. Word has length 37 [2021-06-05 13:41:30,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:30,105 INFO L482 AbstractCegarLoop]: Abstraction has 55170 states and 329635 transitions. [2021-06-05 13:41:30,106 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:30,106 INFO L276 IsEmpty]: Start isEmpty. Operand 55170 states and 329635 transitions. [2021-06-05 13:41:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:41:30,231 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:30,231 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:30,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 13:41:30,231 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:30,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:30,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1086180637, now seen corresponding path program 18 times [2021-06-05 13:41:30,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:30,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027561533] [2021-06-05 13:41:30,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:30,443 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:30,443 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027561533] [2021-06-05 13:41:30,443 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027561533] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:30,443 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:30,443 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:41:30,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123512892] [2021-06-05 13:41:30,443 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:41:30,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:30,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:41:30,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:30,444 INFO L87 Difference]: Start difference. First operand 55170 states and 329635 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:31,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:31,734 INFO L93 Difference]: Finished difference Result 141683 states and 796433 transitions. [2021-06-05 13:41:31,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:41:31,734 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:41:31,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:32,694 INFO L225 Difference]: With dead ends: 141683 [2021-06-05 13:41:32,694 INFO L226 Difference]: Without dead ends: 138017 [2021-06-05 13:41:32,694 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 226.3ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:41:39,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138017 states. [2021-06-05 13:41:41,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138017 to 54498. [2021-06-05 13:41:41,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54498 states, 54497 states have (on average 5.991889461805237) internal successors, (326540), 54497 states have internal predecessors, (326540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54498 states to 54498 states and 326540 transitions. [2021-06-05 13:41:41,946 INFO L78 Accepts]: Start accepts. Automaton has 54498 states and 326540 transitions. Word has length 37 [2021-06-05 13:41:41,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:41,946 INFO L482 AbstractCegarLoop]: Abstraction has 54498 states and 326540 transitions. [2021-06-05 13:41:41,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:41,946 INFO L276 IsEmpty]: Start isEmpty. Operand 54498 states and 326540 transitions. [2021-06-05 13:41:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:41:42,094 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:42,094 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:42,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 13:41:42,095 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:42,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:42,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1499211103, now seen corresponding path program 19 times [2021-06-05 13:41:42,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:42,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845934848] [2021-06-05 13:41:42,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:42,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:42,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845934848] [2021-06-05 13:41:42,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845934848] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:42,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:42,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:41:42,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343597177] [2021-06-05 13:41:42,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:41:42,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:42,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:41:42,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:42,353 INFO L87 Difference]: Start difference. First operand 54498 states and 326540 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:43,743 INFO L93 Difference]: Finished difference Result 142277 states and 800364 transitions. [2021-06-05 13:41:43,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:41:43,744 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:41:43,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:44,269 INFO L225 Difference]: With dead ends: 142277 [2021-06-05 13:41:44,270 INFO L226 Difference]: Without dead ends: 139245 [2021-06-05 13:41:44,270 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 250.4ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:41:51,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139245 states. [2021-06-05 13:41:53,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139245 to 55234. [2021-06-05 13:41:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55234 states, 55233 states have (on average 5.979975739141455) internal successors, (330292), 55233 states have internal predecessors, (330292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:53,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55234 states to 55234 states and 330292 transitions. [2021-06-05 13:41:53,408 INFO L78 Accepts]: Start accepts. Automaton has 55234 states and 330292 transitions. Word has length 37 [2021-06-05 13:41:53,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:41:53,408 INFO L482 AbstractCegarLoop]: Abstraction has 55234 states and 330292 transitions. [2021-06-05 13:41:53,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 55234 states and 330292 transitions. [2021-06-05 13:41:53,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:41:53,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:41:53,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:41:53,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 13:41:53,541 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:41:53,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:41:53,541 INFO L82 PathProgramCache]: Analyzing trace with hash 752419199, now seen corresponding path program 20 times [2021-06-05 13:41:53,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:41:53,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269787393] [2021-06-05 13:41:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:41:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:41:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:41:53,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:41:53,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269787393] [2021-06-05 13:41:53,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269787393] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:41:53,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:41:53,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:41:53,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649722516] [2021-06-05 13:41:53,741 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:41:53,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:41:53,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:41:53,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:41:53,741 INFO L87 Difference]: Start difference. First operand 55234 states and 330292 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:41:55,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:41:55,032 INFO L93 Difference]: Finished difference Result 142263 states and 799827 transitions. [2021-06-05 13:41:55,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:41:55,033 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:41:55,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:41:56,010 INFO L225 Difference]: With dead ends: 142263 [2021-06-05 13:41:56,010 INFO L226 Difference]: Without dead ends: 138750 [2021-06-05 13:41:56,010 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 234.1ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:42:03,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138750 states. [2021-06-05 13:42:04,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138750 to 54739. [2021-06-05 13:42:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54739 states, 54738 states have (on average 5.988125251196609) internal successors, (327778), 54738 states have internal predecessors, (327778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:05,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54739 states to 54739 states and 327778 transitions. [2021-06-05 13:42:05,420 INFO L78 Accepts]: Start accepts. Automaton has 54739 states and 327778 transitions. Word has length 37 [2021-06-05 13:42:05,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:05,420 INFO L482 AbstractCegarLoop]: Abstraction has 54739 states and 327778 transitions. [2021-06-05 13:42:05,420 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:05,420 INFO L276 IsEmpty]: Start isEmpty. Operand 54739 states and 327778 transitions. [2021-06-05 13:42:05,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:42:05,657 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:05,657 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:05,657 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 13:42:05,657 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:05,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:05,658 INFO L82 PathProgramCache]: Analyzing trace with hash 1948959231, now seen corresponding path program 21 times [2021-06-05 13:42:05,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:05,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839546183] [2021-06-05 13:42:05,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:05,866 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:05,866 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839546183] [2021-06-05 13:42:05,866 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839546183] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:05,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:05,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:42:05,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798386872] [2021-06-05 13:42:05,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:42:05,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:05,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:42:05,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:05,867 INFO L87 Difference]: Start difference. First operand 54739 states and 327778 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:07,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:07,303 INFO L93 Difference]: Finished difference Result 142241 states and 799991 transitions. [2021-06-05 13:42:07,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:42:07,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:42:07,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:08,248 INFO L225 Difference]: With dead ends: 142241 [2021-06-05 13:42:08,248 INFO L226 Difference]: Without dead ends: 139209 [2021-06-05 13:42:08,248 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 216.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:42:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139209 states. [2021-06-05 13:42:17,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139209 to 55222. [2021-06-05 13:42:17,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55222 states, 55221 states have (on average 5.9762590318900415) internal successors, (330015), 55221 states have internal predecessors, (330015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55222 states to 55222 states and 330015 transitions. [2021-06-05 13:42:18,007 INFO L78 Accepts]: Start accepts. Automaton has 55222 states and 330015 transitions. Word has length 37 [2021-06-05 13:42:18,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:18,007 INFO L482 AbstractCegarLoop]: Abstraction has 55222 states and 330015 transitions. [2021-06-05 13:42:18,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:18,007 INFO L276 IsEmpty]: Start isEmpty. Operand 55222 states and 330015 transitions. [2021-06-05 13:42:18,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:42:18,146 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:18,146 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:18,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 13:42:18,146 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:18,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:18,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1153541633, now seen corresponding path program 22 times [2021-06-05 13:42:18,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:18,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467168702] [2021-06-05 13:42:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:18,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:18,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:18,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467168702] [2021-06-05 13:42:18,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467168702] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:18,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:18,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:42:18,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546783779] [2021-06-05 13:42:18,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:42:18,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:18,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:42:18,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:18,353 INFO L87 Difference]: Start difference. First operand 55222 states and 330015 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:19,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:19,722 INFO L93 Difference]: Finished difference Result 142203 states and 799382 transitions. [2021-06-05 13:42:19,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:42:19,723 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:42:19,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:20,309 INFO L225 Difference]: With dead ends: 142203 [2021-06-05 13:42:20,310 INFO L226 Difference]: Without dead ends: 138726 [2021-06-05 13:42:20,310 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:42:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138726 states. [2021-06-05 13:42:29,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138726 to 54739. [2021-06-05 13:42:29,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54739 states, 54738 states have (on average 5.983722459717198) internal successors, (327537), 54738 states have internal predecessors, (327537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:29,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54739 states to 54739 states and 327537 transitions. [2021-06-05 13:42:29,544 INFO L78 Accepts]: Start accepts. Automaton has 54739 states and 327537 transitions. Word has length 37 [2021-06-05 13:42:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:29,544 INFO L482 AbstractCegarLoop]: Abstraction has 54739 states and 327537 transitions. [2021-06-05 13:42:29,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 54739 states and 327537 transitions. [2021-06-05 13:42:29,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:42:29,681 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:29,681 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:29,681 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 13:42:29,681 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:29,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:29,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1363660451, now seen corresponding path program 23 times [2021-06-05 13:42:29,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:29,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777749691] [2021-06-05 13:42:29,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:29,885 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:29,885 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777749691] [2021-06-05 13:42:29,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777749691] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:29,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:29,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:42:29,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966824362] [2021-06-05 13:42:29,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:42:29,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:29,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:42:29,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:29,886 INFO L87 Difference]: Start difference. First operand 54739 states and 327537 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:31,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:31,351 INFO L93 Difference]: Finished difference Result 142212 states and 799663 transitions. [2021-06-05 13:42:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:42:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:42:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:32,475 INFO L225 Difference]: With dead ends: 142212 [2021-06-05 13:42:32,476 INFO L226 Difference]: Without dead ends: 139194 [2021-06-05 13:42:32,476 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 218.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:42:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139194 states. [2021-06-05 13:42:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139194 to 55221. [2021-06-05 13:42:41,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55221 states, 55220 states have (on average 5.971966678739587) internal successors, (329772), 55220 states have internal predecessors, (329772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:42,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55221 states to 55221 states and 329772 transitions. [2021-06-05 13:42:42,037 INFO L78 Accepts]: Start accepts. Automaton has 55221 states and 329772 transitions. Word has length 37 [2021-06-05 13:42:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:42,037 INFO L482 AbstractCegarLoop]: Abstraction has 55221 states and 329772 transitions. [2021-06-05 13:42:42,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:42,037 INFO L276 IsEmpty]: Start isEmpty. Operand 55221 states and 329772 transitions. [2021-06-05 13:42:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:42:42,186 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:42,186 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:42,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 13:42:42,186 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:42,186 INFO L82 PathProgramCache]: Analyzing trace with hash -282597825, now seen corresponding path program 24 times [2021-06-05 13:42:42,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:42,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107243755] [2021-06-05 13:42:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:42,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:42,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:42,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107243755] [2021-06-05 13:42:42,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107243755] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:42,389 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:42,389 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:42:42,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366181969] [2021-06-05 13:42:42,389 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:42:42,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:42,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:42:42,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:42,389 INFO L87 Difference]: Start difference. First operand 55221 states and 329772 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:43,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:43,758 INFO L93 Difference]: Finished difference Result 142188 states and 799097 transitions. [2021-06-05 13:42:43,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:42:43,759 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:42:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:44,306 INFO L225 Difference]: With dead ends: 142188 [2021-06-05 13:42:44,306 INFO L226 Difference]: Without dead ends: 138280 [2021-06-05 13:42:44,306 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 213.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:42:51,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138280 states. [2021-06-05 13:42:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138280 to 54307. [2021-06-05 13:42:53,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54307 states, 54306 states have (on average 5.998858321364122) internal successors, (325774), 54306 states have internal predecessors, (325774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:53,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54307 states to 54307 states and 325774 transitions. [2021-06-05 13:42:53,320 INFO L78 Accepts]: Start accepts. Automaton has 54307 states and 325774 transitions. Word has length 37 [2021-06-05 13:42:53,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:42:53,320 INFO L482 AbstractCegarLoop]: Abstraction has 54307 states and 325774 transitions. [2021-06-05 13:42:53,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 54307 states and 325774 transitions. [2021-06-05 13:42:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:42:53,443 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:42:53,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:42:53,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 13:42:53,444 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:42:53,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:42:53,444 INFO L82 PathProgramCache]: Analyzing trace with hash 715667261, now seen corresponding path program 25 times [2021-06-05 13:42:53,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:42:53,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174072300] [2021-06-05 13:42:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:42:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:42:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:42:53,633 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:42:53,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174072300] [2021-06-05 13:42:53,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174072300] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:42:53,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:42:53,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:42:53,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711366423] [2021-06-05 13:42:53,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:42:53,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:42:53,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:42:53,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:42:53,635 INFO L87 Difference]: Start difference. First operand 54307 states and 325774 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:42:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:42:54,974 INFO L93 Difference]: Finished difference Result 141506 states and 796059 transitions. [2021-06-05 13:42:54,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:42:54,975 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:42:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:42:56,084 INFO L225 Difference]: With dead ends: 141506 [2021-06-05 13:42:56,084 INFO L226 Difference]: Without dead ends: 138712 [2021-06-05 13:42:56,084 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 203.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:43:03,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138712 states. [2021-06-05 13:43:04,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138712 to 55295. [2021-06-05 13:43:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55295 states, 55294 states have (on average 5.981426556226715) internal successors, (330737), 55294 states have internal predecessors, (330737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:05,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55295 states to 55295 states and 330737 transitions. [2021-06-05 13:43:05,646 INFO L78 Accepts]: Start accepts. Automaton has 55295 states and 330737 transitions. Word has length 37 [2021-06-05 13:43:05,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:05,647 INFO L482 AbstractCegarLoop]: Abstraction has 55295 states and 330737 transitions. [2021-06-05 13:43:05,647 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 55295 states and 330737 transitions. [2021-06-05 13:43:05,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:43:05,823 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:05,823 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:05,823 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 13:43:05,824 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:05,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:05,824 INFO L82 PathProgramCache]: Analyzing trace with hash -874267489, now seen corresponding path program 26 times [2021-06-05 13:43:05,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:05,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912887768] [2021-06-05 13:43:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:06,023 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:06,023 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912887768] [2021-06-05 13:43:06,023 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912887768] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:06,023 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:06,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:43:06,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188844858] [2021-06-05 13:43:06,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:43:06,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:06,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:43:06,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:06,024 INFO L87 Difference]: Start difference. First operand 55295 states and 330737 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:07,496 INFO L93 Difference]: Finished difference Result 141744 states and 796922 transitions. [2021-06-05 13:43:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:43:07,496 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:43:07,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:08,024 INFO L225 Difference]: With dead ends: 141744 [2021-06-05 13:43:08,024 INFO L226 Difference]: Without dead ends: 138201 [2021-06-05 13:43:08,025 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 232.5ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:43:15,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138201 states. [2021-06-05 13:43:16,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138201 to 54784. [2021-06-05 13:43:16,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54784 states, 54783 states have (on average 5.990526258145775) internal successors, (328179), 54783 states have internal predecessors, (328179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:17,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54784 states to 54784 states and 328179 transitions. [2021-06-05 13:43:17,055 INFO L78 Accepts]: Start accepts. Automaton has 54784 states and 328179 transitions. Word has length 37 [2021-06-05 13:43:17,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:17,055 INFO L482 AbstractCegarLoop]: Abstraction has 54784 states and 328179 transitions. [2021-06-05 13:43:17,055 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand 54784 states and 328179 transitions. [2021-06-05 13:43:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:43:17,189 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:17,189 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:17,189 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 13:43:17,189 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1796729887, now seen corresponding path program 27 times [2021-06-05 13:43:17,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:17,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546211192] [2021-06-05 13:43:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:17,383 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:17,383 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546211192] [2021-06-05 13:43:17,383 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546211192] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:17,383 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:17,383 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:43:17,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34358013] [2021-06-05 13:43:17,383 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:43:17,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:17,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:43:17,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:17,384 INFO L87 Difference]: Start difference. First operand 54784 states and 328179 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:19,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:19,226 INFO L93 Difference]: Finished difference Result 141363 states and 795183 transitions. [2021-06-05 13:43:19,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:43:19,226 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:43:19,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:20,042 INFO L225 Difference]: With dead ends: 141363 [2021-06-05 13:43:20,042 INFO L226 Difference]: Without dead ends: 138569 [2021-06-05 13:43:20,042 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 192.6ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:43:27,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138569 states. [2021-06-05 13:43:29,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138569 to 55166. [2021-06-05 13:43:29,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55166 states, 55165 states have (on average 5.980313604640624) internal successors, (329904), 55165 states have internal predecessors, (329904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55166 states to 55166 states and 329904 transitions. [2021-06-05 13:43:29,554 INFO L78 Accepts]: Start accepts. Automaton has 55166 states and 329904 transitions. Word has length 37 [2021-06-05 13:43:29,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:29,554 INFO L482 AbstractCegarLoop]: Abstraction has 55166 states and 329904 transitions. [2021-06-05 13:43:29,554 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:29,554 INFO L276 IsEmpty]: Start isEmpty. Operand 55166 states and 329904 transitions. [2021-06-05 13:43:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:43:29,685 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:29,685 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:29,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 13:43:29,685 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:29,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1489939425, now seen corresponding path program 28 times [2021-06-05 13:43:29,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:29,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269254541] [2021-06-05 13:43:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:29,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:29,893 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:29,893 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269254541] [2021-06-05 13:43:29,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269254541] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:29,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:29,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:43:29,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136155884] [2021-06-05 13:43:29,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:43:29,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:29,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:43:29,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:29,894 INFO L87 Difference]: Start difference. First operand 55166 states and 329904 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:31,275 INFO L93 Difference]: Finished difference Result 141587 states and 796005 transitions. [2021-06-05 13:43:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:43:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:43:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:32,420 INFO L225 Difference]: With dead ends: 141587 [2021-06-05 13:43:32,421 INFO L226 Difference]: Without dead ends: 138187 [2021-06-05 13:43:32,421 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 223.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:43:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138187 states. [2021-06-05 13:43:41,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138187 to 54784. [2021-06-05 13:43:41,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54784 states, 54783 states have (on average 5.987039775112717) internal successors, (327988), 54783 states have internal predecessors, (327988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54784 states to 54784 states and 327988 transitions. [2021-06-05 13:43:41,755 INFO L78 Accepts]: Start accepts. Automaton has 54784 states and 327988 transitions. Word has length 37 [2021-06-05 13:43:41,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:41,755 INFO L482 AbstractCegarLoop]: Abstraction has 54784 states and 327988 transitions. [2021-06-05 13:43:41,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:41,756 INFO L276 IsEmpty]: Start isEmpty. Operand 54784 states and 327988 transitions. [2021-06-05 13:43:41,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:43:41,943 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:41,943 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:41,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 13:43:41,943 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:41,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:41,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1081075455, now seen corresponding path program 29 times [2021-06-05 13:43:41,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:41,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472839971] [2021-06-05 13:43:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:41,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:42,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:42,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472839971] [2021-06-05 13:43:42,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472839971] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:42,147 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:42,147 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:43:42,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338896744] [2021-06-05 13:43:42,147 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:43:42,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:42,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:43:42,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:42,148 INFO L87 Difference]: Start difference. First operand 54784 states and 327988 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:43,505 INFO L93 Difference]: Finished difference Result 141952 states and 798145 transitions. [2021-06-05 13:43:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:43:43,506 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:43:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:44,059 INFO L225 Difference]: With dead ends: 141952 [2021-06-05 13:43:44,059 INFO L226 Difference]: Without dead ends: 138920 [2021-06-05 13:43:44,060 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 210.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:43:51,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138920 states. [2021-06-05 13:43:53,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138920 to 55279. [2021-06-05 13:43:53,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55279 states, 55278 states have (on average 5.974546835992619) internal successors, (330261), 55278 states have internal predecessors, (330261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:53,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55279 states to 55279 states and 330261 transitions. [2021-06-05 13:43:53,325 INFO L78 Accepts]: Start accepts. Automaton has 55279 states and 330261 transitions. Word has length 37 [2021-06-05 13:43:53,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:43:53,325 INFO L482 AbstractCegarLoop]: Abstraction has 55279 states and 330261 transitions. [2021-06-05 13:43:53,325 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:53,326 INFO L276 IsEmpty]: Start isEmpty. Operand 55279 states and 330261 transitions. [2021-06-05 13:43:53,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:43:53,463 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:43:53,463 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:43:53,463 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 13:43:53,464 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:43:53,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:43:53,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1170554847, now seen corresponding path program 30 times [2021-06-05 13:43:53,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:43:53,464 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592287612] [2021-06-05 13:43:53,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:43:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:43:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:43:53,643 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:43:53,644 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592287612] [2021-06-05 13:43:53,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592287612] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:43:53,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:43:53,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:43:53,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242152469] [2021-06-05 13:43:53,644 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:43:53,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:43:53,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:43:53,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:43:53,645 INFO L87 Difference]: Start difference. First operand 55279 states and 330261 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:43:55,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:43:55,070 INFO L93 Difference]: Finished difference Result 141938 states and 797608 transitions. [2021-06-05 13:43:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:43:55,070 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:43:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:43:56,197 INFO L225 Difference]: With dead ends: 141938 [2021-06-05 13:43:56,198 INFO L226 Difference]: Without dead ends: 138106 [2021-06-05 13:43:56,198 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 209.2ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:44:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138106 states. [2021-06-05 13:44:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138106 to 54465. [2021-06-05 13:44:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54465 states, 54464 states have (on average 5.995721944770858) internal successors, (326551), 54464 states have internal predecessors, (326551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54465 states to 54465 states and 326551 transitions. [2021-06-05 13:44:05,719 INFO L78 Accepts]: Start accepts. Automaton has 54465 states and 326551 transitions. Word has length 37 [2021-06-05 13:44:05,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:44:05,719 INFO L482 AbstractCegarLoop]: Abstraction has 54465 states and 326551 transitions. [2021-06-05 13:44:05,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:05,719 INFO L276 IsEmpty]: Start isEmpty. Operand 54465 states and 326551 transitions. [2021-06-05 13:44:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:44:05,860 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:44:05,860 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:44:05,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 13:44:05,860 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:44:05,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:44:05,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1819351839, now seen corresponding path program 31 times [2021-06-05 13:44:05,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:44:05,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675018084] [2021-06-05 13:44:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:44:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:44:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:44:06,072 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:44:06,072 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675018084] [2021-06-05 13:44:06,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675018084] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:44:06,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:44:06,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:44:06,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969967844] [2021-06-05 13:44:06,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:44:06,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:44:06,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:44:06,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:44:06,073 INFO L87 Difference]: Start difference. First operand 54465 states and 326551 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:07,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:44:07,434 INFO L93 Difference]: Finished difference Result 141337 states and 795227 transitions. [2021-06-05 13:44:07,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:44:07,434 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:44:07,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:44:07,957 INFO L225 Difference]: With dead ends: 141337 [2021-06-05 13:44:07,957 INFO L226 Difference]: Without dead ends: 138543 [2021-06-05 13:44:07,957 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 210.9ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:44:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138543 states. [2021-06-05 13:44:16,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138543 to 55228. [2021-06-05 13:44:16,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55228 states, 55227 states have (on average 5.980951346261792) internal successors, (330310), 55227 states have internal predecessors, (330310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:17,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55228 states to 55228 states and 330310 transitions. [2021-06-05 13:44:17,058 INFO L78 Accepts]: Start accepts. Automaton has 55228 states and 330310 transitions. Word has length 37 [2021-06-05 13:44:17,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:44:17,059 INFO L482 AbstractCegarLoop]: Abstraction has 55228 states and 330310 transitions. [2021-06-05 13:44:17,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:17,059 INFO L276 IsEmpty]: Start isEmpty. Operand 55228 states and 330310 transitions. [2021-06-05 13:44:17,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:44:17,204 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:44:17,204 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:44:17,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 13:44:17,204 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:44:17,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:44:17,204 INFO L82 PathProgramCache]: Analyzing trace with hash 229417089, now seen corresponding path program 32 times [2021-06-05 13:44:17,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:44:17,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965955260] [2021-06-05 13:44:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:44:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:44:17,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:44:17,402 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:44:17,402 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965955260] [2021-06-05 13:44:17,402 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965955260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:44:17,402 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:44:17,402 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:44:17,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730432062] [2021-06-05 13:44:17,402 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:44:17,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:44:17,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:44:17,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:44:17,402 INFO L87 Difference]: Start difference. First operand 55228 states and 330310 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 13:44:18,759 INFO L93 Difference]: Finished difference Result 141575 states and 796090 transitions. [2021-06-05 13:44:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:44:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-06-05 13:44:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 13:44:19,889 INFO L225 Difference]: With dead ends: 141575 [2021-06-05 13:44:19,889 INFO L226 Difference]: Without dead ends: 138032 [2021-06-05 13:44:19,889 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 236.7ms TimeCoverageRelationStatistics Valid=58, Invalid=74, Unknown=0, NotChecked=0, Total=132 [2021-06-05 13:44:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138032 states. [2021-06-05 13:44:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138032 to 54717. [2021-06-05 13:44:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54717 states, 54716 states have (on average 5.990112581329044) internal successors, (327755), 54716 states have internal predecessors, (327755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54717 states to 54717 states and 327755 transitions. [2021-06-05 13:44:29,134 INFO L78 Accepts]: Start accepts. Automaton has 54717 states and 327755 transitions. Word has length 37 [2021-06-05 13:44:29,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 13:44:29,134 INFO L482 AbstractCegarLoop]: Abstraction has 54717 states and 327755 transitions. [2021-06-05 13:44:29,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 13:44:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 54717 states and 327755 transitions. [2021-06-05 13:44:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-06-05 13:44:29,278 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 13:44:29,279 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 13:44:29,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 13:44:29,279 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-05 13:44:29,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 13:44:29,279 INFO L82 PathProgramCache]: Analyzing trace with hash -688233697, now seen corresponding path program 33 times [2021-06-05 13:44:29,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 13:44:29,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118660193] [2021-06-05 13:44:29,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 13:44:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 13:44:29,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 13:44:29,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 13:44:29,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118660193] [2021-06-05 13:44:29,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118660193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 13:44:29,539 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 13:44:29,539 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 13:44:29,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798170709] [2021-06-05 13:44:29,539 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 13:44:29,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 13:44:29,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 13:44:29,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-06-05 13:44:29,539 INFO L87 Difference]: Start difference. First operand 54717 states and 327755 transitions. Second operand has 11 states, 10 states have (on average 3.7) internal successors, (37), 11 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2021-06-05 13:44:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-05 13:44:30,819 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 13:44:30,819 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 13:44:30,820 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 13:44:30,822 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 13:44:30,822 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 01:44:30 BasicIcfg [2021-06-05 13:44:30,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 13:44:30,822 INFO L168 Benchmark]: Toolchain (without parser) took 715932.66 ms. Allocated memory was 385.9 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 365.6 MB in the beginning and 8.4 GB in the end (delta: -8.1 GB). Peak memory consumption was 8.3 GB. Max. memory is 16.0 GB. [2021-06-05 13:44:30,823 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 385.9 MB. Free memory is still 366.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 13:44:30,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.81 ms. Allocated memory is still 385.9 MB. Free memory was 365.5 MB in the beginning and 364.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 13:44:30,825 INFO L168 Benchmark]: Boogie Preprocessor took 11.65 ms. Allocated memory is still 385.9 MB. Free memory was 364.0 MB in the beginning and 363.1 MB in the end (delta: 909.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 13:44:30,825 INFO L168 Benchmark]: RCFGBuilder took 193.60 ms. Allocated memory is still 385.9 MB. Free memory was 363.0 MB in the beginning and 350.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 13:44:30,825 INFO L168 Benchmark]: TraceAbstraction took 715702.94 ms. Allocated memory was 385.9 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 350.4 MB in the beginning and 8.4 GB in the end (delta: -8.1 GB). Peak memory consumption was 8.3 GB. Max. memory is 16.0 GB. [2021-06-05 13:44:30,827 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 385.9 MB. Free memory is still 366.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 20.81 ms. Allocated memory is still 385.9 MB. Free memory was 365.5 MB in the beginning and 364.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.65 ms. Allocated memory is still 385.9 MB. Free memory was 364.0 MB in the beginning and 363.1 MB in the end (delta: 909.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 193.60 ms. Allocated memory is still 385.9 MB. Free memory was 363.0 MB in the beginning and 350.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 715702.94 ms. Allocated memory was 385.9 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 350.4 MB in the beginning and 8.4 GB in the end (delta: -8.1 GB). Peak memory consumption was 8.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 15]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 10]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 14]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 18]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 17]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (54717states) and FLOYD_HOARE automaton (currently 11 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (101421 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 19 procedures, 85 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 715489.0ms, OverallIterations: 40, TraceHistogramMax: 1, EmptinessCheckTime: 13942.4ms, AutomataDifference: 96033.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 185876.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12928 SDtfs, 29251 SDslu, 37579 SDs, 0 SdLazy, 3277 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2706.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 384 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 337 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 7804.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=271988occurred in iteration=0, InterpolantAutomatonStates: 373, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 410979.4ms AutomataMinimizationTime, 39 MinimizatonAttempts, 2674456 StatesRemovedByMinimization, 32 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 94.2ms SsaConstructionTime, 168.9ms SatisfiabilityAnalysisTime, 8116.4ms InterpolantComputationTime, 1480 NumberOfCodeBlocks, 1480 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 1440 ConstructedInterpolants, 0 QuantifiedInterpolants, 46319 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 40 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !SESSION 2021-06-05 13:32:33.356 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.11 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl !ENTRY org.eclipse.osgi 4 0 2021-06-05 13:44:31.078 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5deb95a/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc5deb95a/.metadata/.log.